Boomer, I just read my 2012 TC Owners Manual and it made no mention of not leaving an accessory, like a Fan Tastic Endless Breeze portable fan, plugged in overnight. I have a high power alternator that charges both my car battery and a stereo amp battery. The fan would not drain these batteries if left on overnight. Since Ford did not indicate a safety reason for not leaving the fan plugged in over night, I suspect that it is safe to do so. Unless someone has some knowledge or personal experience otherwise I plan to use it. Interesting topic. I also plan to install a carbon monoxide alarm just in case.
Also planning to build an elevated bed and a wooden wall to protect the large base box speakers placed six inches from the rear doors facing the doors. The wooden wall will protect the amp and speakers from the cargo area under the bed. It will not be as dolled up as some but it will be functional, sleep two, and have incredible sound. I'll post pictures when complete. I begin the modifications tomorrow and should have them completed in about a week.
NOTE: I read this interesting warning regarding aftermarket stereo installation,. Installing stereo loudspeakers may interfere with and adversely affect the Afvance Trac with RSC system. Install loudspeakers as far from the front center console in order to minimize the risk. Reducing the effectiveness of the Advance Trac with RSC system could lead to an increased risk and loss of vehicle control. Woah! What's that all about? Any experience anyone? I may have to sound deaden the console. Wow!
I spoke to a Pro Audio Shop owner today whom I've known for many years. He does the car audio for pro sports figures, stars, etc., as well as loafer's like me. Anyway, he said that he had installed pro systems in many cars with far more advanced electronics than the Connect without incident. He has also installed them in Ford trucks and cars that have the Advance Trac system with no reported troubles. Further he indicated that many Fords, including some Connects, do have an on off button for the system. The Connects that do not have that on off button can also turn it off by scrolling through the electronic menu. Not sure how to do that yet but will find out. So the stereo seems to be largely a non issue in his experience. I'll let you know how it goes once I have it installed and try it out on the road. Darn I wish Ford wouldn't throw those disclaimer paragraphs in the owners guide.